A busy chipmunk runs back and forth along a straight line of acorns that has been set out between its burrow and a nearby tree. At some instant, it moves with a velocity of −1.25 m/s
. Then, 2.01 s
later, it moves with a velocity of 1.95 m/s
. What is the chipmunk's average acceleration during the 2.01 s
time interval?

A busy chipmunk runs back and forth along a straight line of acorns that has been set out between its burrow and a nearby tree At some instant it moves with a v class=